adding startup and shutdown scripts for zookeeper servers. Also adding a script to startup the zookeeper client interface. The log4 file is included in the jar now. The users can change the log4j properties by setting evn variables in the script and also by adding log4j.properties in the classpath.
hadoop/zookeeper/trunk/zookeeper/bin/
hadoop/zookeeper/trunk/zookeeper/bin/zkCleanup.sh